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openconfig / gnmi

gRPC Network Management Interface
Apache License 2.0
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gnmi_cli hangs on to the host machine if the underlying putty session experience a network disconnection #172

Closed ashu-ciena closed 5 months ago

ashu-ciena commented 5 months ago

When the gnmi_cli is run from a linux machine by logging into the machine through a putty shell from windows PC and due to network glitch, putty shell disconnects, the gnmi client continues to run in background for a while (10-15 minutes) but stops acknowledging to the gnmi notifications when the underlying transport protocol is gRPC.

Eventually, the gRPC write at server side is stuck and all subsequent writes starts getting queued up at server side.

The problem is, the connection is not closed instantly and hence clean up of the gNMI session does not happen till the gnmi client starts the closing sequence.

This problem is not seen with gNMIC client.

robshakir commented 5 months ago

I'm not sure I understand the case here -- is the binary running on the remote side? What state gnmi_cli in in this case?

ashu-ciena commented 5 months ago

Not able to reproduce at this moment, closing for now. Will file a new ticket if required.